Trying to make a perfectly round mast? With this spar gauge you can turn any square stock into an 8-sided beam.
I designed this spar gauge for a friend who builds small sailing boats. Because DIY spar gauges are not that accurate, he asked me to design a 3D printable model.
This model can be printed as one. You will need to add threaded inserts to the side afterwards, to allow bolts or threaded knobs to be inserted to secure the pencils. This is very easy with a soldering iron, and secures the inserts very well.
Don’t have a 3D printer? We also sell completely finished, physical versions of this spar gauge.
Step-by-step guide to make a custom miter fence from an aluminium extrusion with a 3D-printed flip stop.
Trying to make a perfectly round mast? With this spar gauge you can turn any square stock into an 8-sided beam. […]
3D Printed Planing Stop This is a simple planing stop that works with two bench dogs from the ‘Atlas System’ […]
3D Printed Bench Dogs These are the basic bench dogs I have designed for what I call the ‘Atlas System’ […]
© Machine Atlas 2023
I’m building a drift boat and making my own oars. Have made my own spar gauges from hard wood but the tolerances aren’t precise enough. Found this file and had it 3D printed by our students at school. AWESOME RESULTS!! This thing is an amazing and simple tool. Thanks so much for sharing!
Glad to hear you found it useful Jeff! Hope your boat and oars turn out great.